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Garnet Mountain Fire Lookout in Montana
Hard to BookNational Forest

Garnet Mountain Fire Lookout

Custer Gallatin National Forest, Montana

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As of October 2026, Garnet Mountain Fire Lookout is a campground in Custer Gallatin National Forest, Montana with 1 campsite. Garnet Mountain Fire Lookout is booked through Recreation.gov.

  • PermitSnag checks Garnet Mountain Fire Lookout for availability and tells alert holders when a site opens up.
  • Garnet Mountain Fire Lookout is located at 45.4267ยฐ N, 111.2064ยฐ W.
people allowed on each site
15

Garnet Mountain Fire Lookout reservations and next available dates

October 2026

open, tap to book on Recreation.govsold outin your alert

Campsites at Garnet Mountain Fire Lookout

  • Cabin 1

Amenities

  • restrooms
  • potable water

At a glance: Setting: Mountain.

Things to do: hiking, biking, wildlife, stargazing, offroad, horse riding.

All sites at Garnet Mountain Fire Lookout, as listed by Recreation.gov

Every site is in the AREA GARNET MOUNTAIN FIRE LOOKOUT loop.

SiteTypeSleeps
001Cabin15

About Garnet Mountain Fire Lookout

Overview

Garnet Mountain Fire Lookout sits on the apex of Garnet Mountain, at an elevation of 8,245 feet. The lookout provides a panoramic view of the surrounding peaks and valleys. Highlights include the Spanish Peaks to the west, the Gallatin Range to the south, the Hyalite Ridge to the east and the Gallatin River Valley to the north.

The structure can be accessed by hiking, horseback or mountain bike on the Garnet Mountain Lookout Trail in the summer. The 4.5-mile trail gains 2,800 feet along its path. Motorcycles and ATVs can access the lookout via the Rat Lake Trail from June 16 through December 1. During winter months, guests must plan on skiing, snowmobiling or snowshoeing up to 10 miles.

Guests are responsible for their own travel arrangements and safety, and must bring several of their own amenities.

Recreation

Hikers, mountain bikers and off-road vehicle riders can access the same trail used to get to the lookout.

Snowy conditions offer abundant opportunities for cross-country skiing and snowshoeing.

Big game hunting for bear, elk or moose is a popular autumn pastime around Garnet Mountain.

Facilities

The lookout can sleep up to four people on provided bunk beds with mattresses. There is a wood stove for heat that can also be utilized for cooking. Other amenities include a table with chairs, basic cookware, dishes and utensils. A vault toilet is located outside the facility. Firewood is provided for the wood stove, and there is a campfire ring outside as well. Water and electricity are not available. Guests must bring their own water supply, as well as garbage bags for packing out trash. Items such as bedding, flashlights or lanterns, dish soap, extra toilet paper and first aid supplies are also not provided.

Natural Features

A fire lookout has existed on Garnet Mountain since 1930. The current structure was built in 1962. The lookout is available for reservation year-round. It is an excellent vantage point for watching sunrises and sunsets, or for gazing at the stars on a clear night.

Grizzly bears are extremely common in this area, and gray wolves, mountain lions, deer, elk, moose, bighorn sheep and the Canada lynx also make their home here. A wide variety of bird species can also be seen.

Rules and notices at Garnet Mountain Fire Lookout

Recreation.gov does not date these notices. We last read them on September 29, 2026. Check Garnet Mountain Fire Lookout on Recreation.gov

Notices from Recreation.gov

The cabin remains locked; a combination lock code will be included in the reservation confirmation letter/email

Directions and Access: Garnet Mountain Fire Lookout is NOT accessible by vehicles wider that 50 inches. Access is affected by seasonal road closures. (See below and refer to the Motor Vehicle Use Map )

From Bozeman, MT: Take US Highway 191 (Huffine Ln.) west to Four Corners, then south towards Big Sky/West Yellowstone for approximately 21 miles to the intersection with Storm Castle Road FS 132 which is on your left (east) and immediately crosses the Gallatin River on a single span concrete bridge. There are three options from this point:

1. Garnet Mountain/ Storm Castle Trailhead (This non-motorized trail is open to pedestrians, horseback riders, bicyclists and skiers): Drive 2 miles on Storm Castle Road FS 132 to the Storm Castle Trailhead. On the south side of the road take Trail 85, which immediately crosses a foot bridge. Stay left and avoid the right turn onto the Riverside Trail. Travel 4 miles and 2,500 vertical ft. on Trail 85 to the Lookout.

2. Rat Lake Trailhead. (This motorized trail is open to ATVs less than 50" wide, motorcycles and snowmobiles): Drive 6.8 miles on Storm Castle Road FS 132 to the intersection with FS Road 3112. Take the right fork onto FS Road 3112 and drive about a mile more to the primitive Rat Lake trailhead (the end of the road). From there travel Trail 416 for 6 miles to Garnet Mountain Lookout. Follow the signs to Garnet Mountain Trail 416 and avoid the Pioneer Lakes Trail 79.

3. Winter Route January 1 through May 15: Storm Castle Road FS 132 is closed to all wheeled motorized vehicles 1/2 mile from US Highway 191 . Parking is available at the Storm Castle winter trailhead 1/2 mile from Highway 191 just past the Forest Service Helibase. From the winter parking snowmobiles must follow Option #2 described above. The Lookout is approximately 12 miles via this route from the winter Trailhead. Skiers and snowshoers can follow option #1 for about a 6 mile route to the Lookout. ROAD CLOSURE INFORMATION: (Please refer to the Motor Vehicle Use Map ) The route to Garnet Mountain Fire Lookout cannot be by accessed by passenger vehicle and is closed to vehicles wider than 50 inches beyond the Rat Lake Trailhead. January 1 throuh May 15 Storm Castle Road FS 132 is closed to all wheeled motorized vehicles Cabin renters must park at the Storm Castle winter trailhead 1/2 mile from Highway 191 between January 1 through May 15. This is a groomed multi-use winter trail. Please obey traffic rules. Ride on the right side of the trail and ride with caution. Snowmobiles and bicycles must purchase a winter trail grooming pass to travel on groomed snowmobile routes. Contact Montana, Fish Wildlife and Parks for details. ALL WINTER USERS: Please read the Gallatin National Forest avalanche advisory: www.mtavalanche.com , or call (406) 587-6981.

Refunds will not be issued for weather related issues, including weather related accessibility issues. It is your responsibility to think ahead and plan appropriately.

Water is not available in the cabin, water from local sources must be treated prior to consumption

Please be aware; this facility is not cleaned between every user visit. Visitors are advised to clean high-touch surfaces upon arrival and prior to departure. Cleaning supplies will not be provided, so it is recommended that guests bring their own.

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Hantavirus notice: Guests should be aware that there is a risk of exposure to hantavirus when visiting remote cabins; click here to learn more

Guests must carefully follow the food storage order for Custer Gallatin National Forest; Click here for more information

No garbage service; please bring garbage bags and pack out all trash and belongings. Do not leave food, oil, tea, coffee, or canned items in the cabin.

Firewood is not provided at Garnet Mountain Lookout from June 1st through September 30th. Provided firewood is for indoor use only for indoor heating and cooking. Cabin users will bring or gather firewood for outdoor use.

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Burning of Wood Pallets is prohibited.

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Campfires must be contained within the fire ring adjacent to the facility; no other campfires are authorized.

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Don't Move Firewood: Prevent the spread of tree-killing pests by obtaining firewood near your destination and burning it on-site. For more information visit dontmovefirewood.org.

Candles are not permitted inside the cabin

Federal regulations prohibit firing a gun or use of any other weapon in or within 150 yards of a developed recreation site, across or on a road or body of water, or in any circumstance whereby any person may be injured or property damaged; violators will be prosecuted

Horses are not allowed within 100 yards of cabin. Hay and feed must be certified weed-free

Pets not recommended; solid pet wastes must be removed within 100 yards of cabin

Click here for more information about Custer Gallatin National Forest

Garnet Mountain Fire Lookout FAQ

How hard is it to get a campsite at Garnet Mountain Fire Lookout?

Garnet Mountain Fire Lookout is rated "Hard to Book" based on historical demand. This campground is popular and often books out weeks in advance. Your best strategy is to monitor cancellations.

How do I find last-minute availability at Garnet Mountain Fire Lookout?

Cancellations happen frequently at Garnet Mountain Fire Lookout, especially 1-2 weeks before check-in dates. PermitSnag monitors availability 24/7 and sends instant alerts when sites open up due to cancellations. This is often the best way to snag popular campsites.

How many campsites does Garnet Mountain Fire Lookout have?

Garnet Mountain Fire Lookout has 1 campsites.

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